|Costs of hardware, spare parts, and accessories
||Take the following instance type as an example: An instance with the memory of 1,200 MB and storage space of 50 GB (IOPS is up to 600) costs 2,040 RMB/year.
- A minimum of 2 servers are required for a database cluster, and a single server whose IOPS is up to 600 costs approximately 6,000 RMB.
- An intranet switch is used to connect the front-end Web server (an inexpensive 1U non-NMS switch costs about 1,000 RMB). Later hardware damages and replacements take at least 30% of the cost.
Hardware cost: (6,000 x 2 + 1,000) x 130% = 16,900 RMB
Annual hardware cost: 16,900 RMB/3= 5,633 RMB (the cost of hardware is calculated over a 3-year depreciation period)
|Data center hosting fee
||It is service provider’s responsibilities, and no hosting fee is required.
||The hosting fee for a 1U cabinet is 3,000 RMB/year, and hosting fees for two 1U servers and a 1U intranet switch are charged. Data center hosting fees: 3,000 x 3 = 9,000 RMB
||Communication between ECS and ApsaraDB for RDS in the same region is available through the intranet with no cost. However, communication between ECS and ApsaraDB for RDS across different regions is available over the Internet with a certain cost for Internet traffic. For more information, see Pricing.
||Available only in the intranet with no cost for Internet traffic.
|Cost of database maintenance engineers
||There is no labor cost because database maintenance is taken care of by a service provider.
||The monthly salary for an entry-level DBA engineer is at least 5,000 RMB. If 30% workload for a full-time engineer is needed for the current project: Labor cost: 5,000 x 12 x 30% = 18,000 RMB
|Total annual cost